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| Mirrors > Home > MPE Home > Th. List > Mathboxes > submateqlem2 | Structured version Visualization version GIF version | ||
| Description: Lemma for submateq 34140. (Contributed by Thierry Arnoux, 26-Aug-2020.) |
| Ref | Expression |
|---|---|
| submateqlem2.n | ⊢ (𝜑 → 𝑁 ∈ ℕ) |
| submateqlem2.k | ⊢ (𝜑 → 𝐾 ∈ (1...𝑁)) |
| submateqlem2.m | ⊢ (𝜑 → 𝑀 ∈ (1...(𝑁 − 1))) |
| submateqlem2.1 | ⊢ (𝜑 → 𝑀 < 𝐾) |
| Ref | Expression |
|---|---|
| submateqlem2 | ⊢ (𝜑 → (𝑀 ∈ (1..^𝐾) ∧ 𝑀 ∈ ((1...𝑁) ∖ {𝐾}))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fz1ssnn 13579 | . . . . . 6 ⊢ (1...(𝑁 − 1)) ⊆ ℕ | |
| 2 | submateqlem2.m | . . . . . 6 ⊢ (𝜑 → 𝑀 ∈ (1...(𝑁 − 1))) | |
| 3 | 1, 2 | sselid 3943 | . . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℕ) |
| 4 | 3 | nnge1d 12280 | . . . 4 ⊢ (𝜑 → 1 ≤ 𝑀) |
| 5 | submateqlem2.1 | . . . 4 ⊢ (𝜑 → 𝑀 < 𝐾) | |
| 6 | 4, 5 | jca 520 | . . 3 ⊢ (𝜑 → (1 ≤ 𝑀 ∧ 𝑀 < 𝐾)) |
| 7 | 2 | elfzelzd 13549 | . . . 4 ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| 8 | 1zzd 12621 | . . . 4 ⊢ (𝜑 → 1 ∈ ℤ) | |
| 9 | submateqlem2.k | . . . . 5 ⊢ (𝜑 → 𝐾 ∈ (1...𝑁)) | |
| 10 | 9 | elfzelzd 13549 | . . . 4 ⊢ (𝜑 → 𝐾 ∈ ℤ) |
| 11 | elfzo 13685 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 1 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝑀 ∈ (1..^𝐾) ↔ (1 ≤ 𝑀 ∧ 𝑀 < 𝐾))) | |
| 12 | 7, 8, 10, 11 | syl3anc 1396 | . . 3 ⊢ (𝜑 → (𝑀 ∈ (1..^𝐾) ↔ (1 ≤ 𝑀 ∧ 𝑀 < 𝐾))) |
| 13 | 6, 12 | mpbird 260 | . 2 ⊢ (𝜑 → 𝑀 ∈ (1..^𝐾)) |
| 14 | 2 | orcd 886 | . . . 4 ⊢ (𝜑 → (𝑀 ∈ (1...(𝑁 − 1)) ∨ 𝑀 = 𝑁)) |
| 15 | submateqlem2.n | . . . . . 6 ⊢ (𝜑 → 𝑁 ∈ ℕ) | |
| 16 | nnuz 12897 | . . . . . 6 ⊢ ℕ = (ℤ≥‘1) | |
| 17 | 15, 16 | eleqtrdi 2879 | . . . . 5 ⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘1)) |
| 18 | fzm1 13631 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘1) → (𝑀 ∈ (1...𝑁) ↔ (𝑀 ∈ (1...(𝑁 − 1)) ∨ 𝑀 = 𝑁))) | |
| 19 | 17, 18 | syl 18 | . . . 4 ⊢ (𝜑 → (𝑀 ∈ (1...𝑁) ↔ (𝑀 ∈ (1...(𝑁 − 1)) ∨ 𝑀 = 𝑁))) |
| 20 | 14, 19 | mpbird 260 | . . 3 ⊢ (𝜑 → 𝑀 ∈ (1...𝑁)) |
| 21 | 3 | nnred 12244 | . . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℝ) |
| 22 | 21, 5 | ltned 11342 | . . . 4 ⊢ (𝜑 → 𝑀 ≠ 𝐾) |
| 23 | nelsn 4634 | . . . 4 ⊢ (𝑀 ≠ 𝐾 → ¬ 𝑀 ∈ {𝐾}) | |
| 24 | 22, 23 | syl 18 | . . 3 ⊢ (𝜑 → ¬ 𝑀 ∈ {𝐾}) |
| 25 | 20, 24 | eldifd 3924 | . 2 ⊢ (𝜑 → 𝑀 ∈ ((1...𝑁) ∖ {𝐾})) |
| 26 | 13, 25 | jca 520 | 1 ⊢ (𝜑 → (𝑀 ∈ (1..^𝐾) ∧ 𝑀 ∈ ((1...𝑁) ∖ {𝐾}))) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 400 ∨ wo 860 = wceq 1567 ∈ wcel 2149 ≠ wne 2964 ∖ cdif 3910 {csn 4591 class class class wbr 5110 ‘cfv 6534 (class class class)co 7408 1c1 11097 < clt 11239 ≤ cle 11240 − cmin 11437 ℕcn 12229 ℤcz 12587 ℤ≥cuz 12858 ...cfz 13531 ..^cfzo 13678 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5258 ax-nul 5268 ax-pow 5334 ax-pr 5402 ax-un 7730 ax-cnex 11152 ax-resscn 11153 ax-1cn 11154 ax-icn 11155 ax-addcl 11156 ax-addrcl 11157 ax-mulcl 11158 ax-mulrcl 11159 ax-mulcom 11160 ax-addass 11161 ax-mulass 11162 ax-distr 11163 ax-i2m1 11164 ax-1ne0 11165 ax-1rid 11166 ax-rnegex 11167 ax-rrecex 11168 ax-cnre 11169 ax-pre-lttri 11170 ax-pre-lttrn 11171 ax-pre-ltadd 11172 ax-pre-mulgt0 11173 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4874 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6300 df-ord 6361 df-on 6362 df-lim 6363 df-suc 6364 df-iota 6490 df-fun 6536 df-fn 6537 df-f 6538 df-f1 6539 df-fo 6540 df-f1o 6541 df-fv 6542 df-riota 7365 df-ov 7411 df-oprab 7412 df-mpo 7413 df-om 7859 df-1st 7982 df-2nd 7983 df-frecs 8274 df-wrecs 8305 df-recs 8354 df-rdg 8393 df-er 8690 df-en 8940 df-dom 8941 df-sdom 8942 df-pnf 11241 df-mnf 11242 df-xr 11243 df-ltxr 11244 df-le 11245 df-sub 11439 df-neg 11440 df-nn 12230 df-n0 12501 df-z 12588 df-uz 12859 df-fz 13532 df-fzo 13679 |
| This theorem is referenced by: submateq 34140 |
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